Unlike doctors at the Mayo Clinic, he told me, those in Grand Junction get piecework fees from insurers.

NEWYORKER: The Cost Conundrum

It amazes and disgusts me how unscrupulous and unethical companies are able to get around the minimum wage laws by paying piecework like this.

BBC: NEWS | UK | Magazine | Secret life of the office cleaner

"Almost all such places work on piecework and commissions, " she says.

FORBES: Magazine Article

Businesses, for example, that have some workers on piecework, some hourly and some homeworkers may find that the costs of learning the regulations and applying systems which show they comply, add up to more than any additional wages they may have to find.

BBC: Stranglehold on prosperity